Question

f(x) = 3x + 1; g(x) = 5x - 1

Find f/g.

(f/g)(x) = ; domain {x|x ≠ - }

(f/g)(x) = ; domain {x|x ≠ - }

(f/g)(x) = ; domain {x|x ≠ }

(f/g)(x) = ; domain {x|x ≠ }

Answer 1

f/g =(3x+1)/(5x-1)

Answer 2

do you know what to do next?

Answer 3

no:(

Answer 4

We already have f/g, now we need to find the values that aren't in the domain.

You can't divide by zero, right? So what happens if the denominator of\[\Large f/g =\frac{3x+1} {5x-1}\] equals zero? Then we're dividing by zero... so we can't have 5x-1=0.

Answer 5

ohh okay

Answer 6

So can you now find the excluded x value? (the one that makes 5x-1=0)

Answer 7

yeah